Since the time humankind started gardening, we _ _ to make our environment more beautiful.
A. try B. have been trying
C. are trying D. will try
All the books donated by the students from urban schools are said ________ to the students in the earthquake-stricken areas the other day.
A. to have been sent B. being sent
C. having been sent D. to be sent
We got near a garden, _________ owner sitting in it .
A. its B. whose C. that D. which
To tell you the truth, I think it is you, ________Mr. Smith, ________.
A. less than; which are to be blamed
B. rather than; that are to blame
C. other than; that is to blame
D. more than; who is to blame
________ the global economy is showing signs of recovery, many developing countries are still suffering.
A. As B. Where C. How D. While
Dressed in a newly-bought skirt , _________.
A.I could hardly recognize her
B. nobody could recognize her
C. she could hardly be recognized by me
D. there was nobody who could recognize her
